Antique Marine Engine Expo

Nate Rosebrooks, a volunteer in the engine restoration group at Mystic Seaport, adjusts the manual throttle of an Atlas Model 4HS-763 built by the Atlas Imperial Diesel Engine Company in 1940 while running the engine during the Antique Marine Engine Expo at Mystic Seaport Saturday, Aug. 20, 2016. The engine restoration volunteers restored the engine that generates 135 HP at only 350 RPM and is on permanent display. The event continues runs through Sunday. (Dana Jensen/The Day)